go runtime_error ai_generated true

rpc error: code = Canceled desc = context canceled

ID: go/grpc-canceled-context-cancelled

Also available as: JSON · Markdown · 中文
80%Fix Rate
86%Confidence
0Evidence
2025-03-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.0 active — — —
1.1 active — — —

Root Cause

The client cancelled the context before the RPC completed, often due to user action or timeout.

generic

中文

客户端在RPC完成之前取消了上下文，通常是由于用户操作或超时。

Workarounds

  1. 90% success Create a new context for each RPC call to avoid using cancelled contexts. 
    ctx := context.Background()
resp, err := client.SomeRPC(ctx, req)
if err != nil {
    if status.Code(err) == codes.Canceled {
        // Create new context and retry if appropriate
        ctx2 := context.Background()
        resp, err = client.SomeRPC(ctx2, req)
    }
}
  2. 85% success Handle cancellation gracefully by checking context errors. 
    select {
case <-ctx.Done():
    return nil, ctx.Err()
default:
}
resp, err := client.SomeRPC(ctx, req)

Dead Ends

Common approaches that don't work:

  1. Ignore the cancellation and retry with the same context. 100% fail

    The cancelled context cannot be reused; a new context is needed.

  2. Remove context cancellation logic entirely. 90% fail

    This can lead to resource leaks and unresponsive applications.